Ceiling lighting fixture having an inverted conical reflector



Feb. 19, 1952 C. G. GIROLAMI LING LIGH G FIXTURE VING CAL REF TOR e 16,

CEI TIN AN INVERTED CONI Filed Jun Patented Feb. 19, 1952 CEILINGLIGHTING FIXTURE HAVING AN INVERTED CONICAL REFLECTOR Charles G.Girolami, Chicago, Ill.

Application June 16, 1947, Serial No. 754,832

This invention relates to improvements in electric lighting fixtures, ofthe indirect or semiindirect type, and one of .the objects of theinention is to provide a fixture of this character, which is of a simpleconstruction and in which the number of parts is reduced to a minimum,and which will possess a pleasing and attractive appearance.

.,.A..;further object is to provide an improved fixture of thischaracter, in which the parts may be; readily assembled, and whichembodies opposed reflectors between which the lamps are disposed, one ofwhich reflectors may be readily detached or separated from the other, topermit ready access to the lamps, both reflectors being supported by thesame centrally disposed supporting hanger.

To the attainment of these ends, and the accomplishment of other new anduseful objects as will appear, the invention consists in the features ofnovelty in substantially the construction, combination and arrangementof the several parts, hereinafter more fully described and claimed, andshown in the accompanying drawing illustrating this invention, in whichFig. 1 is a central vertical section of a lighting fixtureconstructed inaccordance with the principlesof this invention.

;. Fig. 2 is an enlarged detail sectional View,

showing .the manner of mounting or securing one of the lamp sockets inposition. Fig. 3 is a bottom plan view of Fig. 1. 1. 4 is an enlargeddetail sectional view taken on line 4-4, Fig. 1.

Fig. 5 is an enlarged detail sectional view on 1111651 55, Fig. l.

\ The lighting fixture shown embodies a suitable 11 Claims. (01. 240-78)shaped ceiling reflector l0, preferably circular,

and preferably cone-shaped so as to spread the rays. reflected from itssurface II. The reflector maybe constructed of any suitable material,'suchas a composition having plaster of Parisasabase, which can be castin molds given anyqdesiredcurvature and surface ornamentatlon,TIfidesired in order to impart rigidity and strength thereto, suitablereinforcing means H, such as a metallic stripor bar, may be embeddedtherein.

The reflector I0 is provided with a central opening l3, and issupported, preferably, by means of ahanger member I4, preferably in theform of a rod or pipe that is anchored at one end to -.a ceiling-member15, and is providedwlth screw threads l6 at its other end, This hangermember passesthroughan opening in a spider I! that extends across theopening l3, the spider being secured or anchored in position in anysuitable manner, such as by having its ends l1"- separated and embeddedin the conical portion of the reflector Ill. The spider may be formed oftwo separate members secured together by screws or bolts I1 and shapedto have an opening I! through which the hanger member |4 passes.

A nut or collar I8 isthreaded upon the member l4; engages the spider andholds the periphery of the reflector against the ceiling. A reducedextension I9 is secured to the member H in any suitable manner, such asby means of a coupling 20, and this extension projects through theopening l3, and beyond the extremity of the conical portion of thereflector or ceiling plate In, and is provided with screw threads, for apurpose to be set forth.

The bottom portion of the reflector embodies a reflector or bowl-shapedmember 2|, which is also constructed of any suitable material such as aplaster, or of plaster of Paris, and is provided with a central opening22. A wall or'upwardly projecting portion 23 encompasses the opening 22,and the upper face of this wall is stepped, as at 24, to fit a similarlystepped sur-' face 25 on the end of the conical portion of the ceilingreflector l0, so that when the lower reflector 2| is placed in position,the stepped portions 24, 25 will match, and provide a tight or smoothfit The lower reflector 2| is held in position by means of the extensionl9, passing through the opening 22. A finial 26 is screwed or otherwiseattached to the end of the member or extension I9, and bears against thelower face of the reflector member 2|, to hold the stepped surfaces 24,25 in engagement. The finial may be wholly or partially recessed intothe lower face of the bottom reflector 2|.

The diameter of the lower reflector or bowl 2| is considerably less thanthe diameter of the celling member or reflector l0, and the surface llof the reflector I0 is curved, and is described on a radius struck froma point beyond the peripheral edge of the lower reflector 2 I, such asfrom the point 21, so that the rays from the lamp 28 will strike thesurface H of the ceiling reflector beyond the peripheral edge of thelower reflector 2|, to be reflected to the point 29, as indicated by thelines in Fig. 1. The lamps 28 are arranged between the reflectors, andwithin the lower reflector or bowl 2 and are removably held in positionby means of sockets 30, to which latter sockets are secured in positionby being attached to a band or member 3! that is disposed within theupper reflector Ill, and is provided with threaded openings 32. Thesocket member is provided with a closed base having an opening 33therein, which passes through the base, and through which last saidopening 34 fastening device such as a screw or the like 35 passes, toengage in the respective openings 32 in the members 3!, thereby securingthe socket removably in position. This band or member 3i is secured inposition by fastening means or bolts 3H engaging nuts 3P.

If desired, andin order to provide air circulation passages, openings 36may be provided through the wall of the lower reflector 2|. The lowerreflector or bowl 2! may be of translucent material where asemi-indirect lighting system is desired, or may be of opaque materialwhere an indirect system is employed.

The lamp sockets may be of any desired material and when placed inposition in the fixture there may be provided an air circulation space30.

The conductor wires enter the fixture along the outside of the hangermember Hi, into the space l3 and secured to the sockets 30 in the usualor any suitable manner.

While the preferred form of the invention has. been herein shown anddescribed, it is to be understood that various changes may be made inthe details of construction, and in the combination and arrangement ofthe several parts, within the scope of the claims, without departingfrom the spirit of this invention.

What isclaimed as new is:

1. In a lighting fixture, a.- ceiling reflector having an invertedsubstantially conical shaped portion provided with an opening throughthe apex of said conical portion thereby providing-a downwardly facingannular surface, a supporting member carried by said portion, extendingacross said opening and spaced from the end of said conical portion, alower bowl-shaped reflector having an upwardly extending annular ribcentrally disposed therein and fltting against said downwardly annularsurface to form a closure for said opening, a hanger member anchored atone end to the ceiling and passing through said supporting member andthe lower reflector, means engaging said hanger member for supportingthe reflectors and for maintaining them in assembled relation, thediameter of the lower reflector being substantially less than thediameter of the ceiling reflector member, and lamps removably supportedby the ceiling reflector and disposed between the reflector members andconcealed by the lower reflector member.

2. In a lighting fixture, a ceiling reflector having an invertedsubstantially conical shaped portion provided with an opening throughthe apex of said conical portion thereby providing a downwardly facingannular surface, a supporting member carried by said portion, extendingacross said opening and spaced from the end of said conical portion, alower bowl-shaped reflector having an upwardly extending annular ribcentrally disposed therein and fitting against said downwardlyannularsurface to form a closure for said opening, a hanger member anchored atone end to the ceiling and passing through said supporting member andthe lower reflector, means engaging said hanger member and individual tosaid supporting member and said lower reflector, for supporting thereflectors and for maintain- 4 ing them in assembled relation, thediameter of the lower reflector being substantially less than thediameter of the ceiling reflector member, and lamps removably supportedby the ceiling reflector and disposed between the reflector members andconcealed by the lower reflector member.

3. In a lighting fixture, a ceiling reflector having an invertedsubstantially conical shaped portion provided with an opening throughthe apex of said conical portion thereby providing a downwardly facingannular surface, a supporting member carried by said portion, extendingacross said opening and spaced from the end of said conical portion, alower bowl-shaped reflector having an upwardly extending annular ribcentrally disposed therein and fitting against said i downwardly annularsurface to form a closure for said opening, a hanger member anchored atone end to the ceiling and passing through said supporting member andthe lower reflector, means engaging said hanger member for supportingthe reflectors and for maintaining. them in assem bled relation, thediameter of the. lower reflector being substantially less than thediameter of the ceiling reflector member, and lamps removably supportedby the ceiling reflector and disposed between the reflector members andconcealed by the lower reflector member, the contacting por-- tions ofthe proximate faces of the reflector members having stepped engagement.

4. In a lighting fixture, a ceiling reflector having an. invertedsubstantially conical shaped por-'- tion provided with an openingthrough the apexof said conical portion thereby providing a down--wardly facing annular surface, a supporting member carried by saidportion, extending across said opening and spaced from the end of saidconical portion, a lower bowl-shaped reflector having an upwardlyextending annular rib centrally disposed therein and fitting againstsaid downwardly annular surface to form a closurefor said opening, ahanger member anchored at one end to the ceiling and passing throughsaid sup porting member and the lower reflector, means engaging saidhanger member for supporting the reflectors and for maintaining them inassembled relation, there being a space between said supporting memberand the adjacent portion of the lower reflector for the reception ofconductor members for the lamps, the-diameter of the lower reflectorbeing substantially lessthan the diameter of the ceiling reflectormember,- and lamps -removably supported by the ceiling reflector anddisposed between the reflector members and. con

-' 1 cealed by the lower reflector member.

5. In a lighting fixture, a ceiling reflector hav ing aninvertedsubstantially conical shaped portion provided with an opening throughthe apexof said conical portion thereby providing a down- Wardly facingannular surface, a supporting member carried by said portion, extendingacross said opening and spaced from the e'nd of said conical portion, alower bowl-shaped reflector having an upwardly extending annular ribcentrally disposed therein and fitting against said downwardly annularsurface to form a closure for said opening, a hanger member anchored atone end to the ceiling and passing through said supporting member andthe lower reflector, means engaging said hanger member for supportingthe reflectors and for maintaining them inassembled relation, thediameter of the lower reflector being substantially less than thediameter of the ceiling reflector member, lamps removably supported.

by the ceiling reflector and disposed between-the g reflectormember's-and concealed by the lower reflector member, and aircirculationpassages through the lower reflector, beyond the periphery of saidconical portion of the ceiling reflector.

6. In a lighting fixture, a ceiling reflector having a central invertedconical portion provided with an opening through the apex thereof, asupporting membercarried by said portion and extending across the"saidopening," adjacent but spaced. from the end of said'conicalportion,--a lower reflector member having-an upwardly ,extendingcentrallyldisposed annular rib abutting against the edge ofv saidopening to form a closure for such opening, the diameter of the lowerreflector being less than the diameter of the ceiling reflector member,a hanger member anchored by one end to the ceiling and passing throughsaid supporting member, a collar on said hanger engaging said supportingmember for maintaining the ceiling reflector in position, an extensionon ,7

said hanger member passing through said lower reflector, a collaradjustably connected to said extension and engaging the lower reflectormember, for maintaining the reflectors in assembled relation, and lampsockets secured on and extending in openings in the conical portion forsupporting lamps in position between the reflector members.

7. In a lighting fixture, a ceiling reflector having a central invertedconical portion provided with an opening through the apex thereof, asupporting member carried by said portion and extending across the saidopening, adjacent but spaced from the end of said conical portion, alower reflector member having an upwardly extending centrally disposedannular rib abutting against the edge of said opening to form a closurefor such opening, the diameter of the lower reflector being considerablyless than the diameter of the ceiling reflector member, the lower faceof the ceiling reflector being curved and formed by the revolution of anarc struck from a point disposed beyond the periphery of the lowerreflector member, a hanger member anchored by one end to the ceiling andpassing for supporting lamps in position between the reflector members.

8. In a lighting fixture, a ceiling reflector having a central invertedconical portion provided with an opening through the apex thereof, asupporting member carried by said portion and extending across the saidopening, adjacent but spaced from the end of said conical portion, alower reflector member having an upwardly extending centrally disposedannular rib abutting against the edge of said opening to form a closurefor such opening, the diameter of the lower reflector being less thanthe diameter of the ceiling reflector member, a hanger member anchoredby one end to the ceiling and passing through said supporting member, acollar on said hanger engaging said supporting member for maintainingthe ceiling reflector in position, an extension on said hanger memberpassing through said lower reflector, a collar adjustably connected tosaid extension and engaging the lower reflector member, formaintainingthe'reflectors'in assembled relation, and lamp socketssecured on and extending in openings in the conical portion forsupporting lamps in position between the reflector members, said lowerreflector being separable from the ceiling reflector, while the latterremains intact and attached to the ceiling.

9. Ina lighting fixture, a ceiling reflector having a central invertedconical portion provided with an opening through the apex thereof, asupporting member carried by and extending across the said opening,adjacent but spaced from the end of said conical portion, a lowerreflector member having an upwardly extending centrally disposed annularrib abutting against the edge of said opening to form a closure for suchopening, the diameter of the lower reflector being less than thediameter of the ceiling reflector member, a hanger member anchored byone end to the ceiling and passing through said supporting member, acollar on said hanger engaging said supporting member for maintainingthe ceiling reflector in position, an extension on said hanger memberpassing through said lower reflector, a collar adjustably connected tosaid extension and engaging the lower reflector member, for maintainingthe reflectors in assembled relation, and lamp sockets secured to thewall of said conical portion and between said supporting member and thelower reflector, and freely accessible when said lower reflector isremoved.

10. In a lighting fixture, a ceiling reflector having a central invertedconical portion provided with an opening through the apex thereof asupporting member carried by and extending across the said opening,adjacent but spaced from the end of said conical portion, a lowerreflector member having an upwardly extending centrally disposed annularrib abutting against the edge of said opening to form a closure for suchopening, the diameter of the lower reflector being less than thediameter of the ceiling reflector member, a hanger member anchored byone end to the ceiling and passing through said supporting member, acollar on said hanger engaging said supporting member for maintainingthe ceiling reflector in position, an extension on said hanger memberpassing through said lower reflector, a collar adjustably connected tosaid extension and engaging the lower reflector member, for maintainingthe reflectors in assembled relation, an anchor plate carried by thewall of said conical portion and adjacent a space formed between saidsupporting member and the end of the said conical portion, and lampsockets disposed within said space and detachably secured to said anchorplate.

11. In a lighting fixture, a ceiling reflector having a central invertedconical portion provided with an opening through the apex thereof, asupporting member carried by said portion and extending across the saidopening, adjacent but spaced from the end of said conical portion, alower reflector member having an upwardly extending centrally disposedannular rib abutting against the edge of said opening to form a closurefor such opening, the diameter of the lower reflector being less thanthe diameter of the ceiling reflector member, the lower face of theceiling reflector being curved and formed by the revolution of an arcstruck from a point beyond the periphery of the lower reflector member,a hanger member anchored by one end to the ceiling and passing throughsaid supporting member, a collar on said hanger engaging said supportingmember '7 for maintaining the ceiling reflector inposltion. an ectension on said hanger member passing through said lower reflector, acollar adjustably connected to said extension and engaging the lowerreflector member, for maintaining the reflectors in assembled relation,and lamp sockets secured on and extending in openings in the'conicalportion for supporting lamps in position between -lthe reflectormembers.

'- CHARLES G. GIROLAMI.

REFERENCES CITED file of this patent:

I UNITED STATES PATENTS Number 247,282 Loo-n91 1,250,580 1,410,9851,565,408

- 10 Number Name Date Wheeler Sept. 20, 1881 Young July 15, 1913 'HarterDec. 18, 1917 Beard Mar. 28, 1922 Blackwell Dec.. 15, 1925 FOREIGNPATENTS Country Date Switzerland Nov. 1'7, 1930 Germany June 19,1931France July 12, 1932 Italy -1 Dec. 15, 1939

